<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div class="list" style="display: flex; text-align:center"></div>
    <button class="previous">上一页</button>
    <button class="next">下一页</button>
    <span></span>
    
</body>

</html>
<script src="./promise请求.js"></script>
<script>
  

    
    var page=1
   var  previous=document.querySelector(".previous")
   var  next=document.querySelector(".next")
  
    previous.disabled=true
 
   ajax("get", `https://yantianfeng.com/api/emotion`,{page:1,count:10}).then((data)=> {

            let str = data.emotions.map((item, index) => {
                return `<div> <img src="${item.url}"/> <div>${item.title}</div> </div>`
            }).join("")
            document.querySelector(".list").innerHTML = str
            document.querySelector("span").innerHTML = `${page}/4`
        })


      previous.onclick=function(){
      if(page>1){
       
        ajax("get", `https://yantianfeng.com/api/emotion`,{page:--page,count:10}).then((data)=> {
            let str = data.emotions.map((item, index) => {
                return `<div> <img src="${item.url}"/> <div>${item.title}</div> </div>`
            }).join("")
            document.querySelector(".list").innerHTML = str
            document.querySelector("span").innerHTML = `${page}/4`
        })
        next.disabled=false
      }
      if(page==1){
        previous.disabled=true
      }
     
    }
    next.onclick=function(){
       if(page<4){
        previous.disabled=false
     
        ajax("get", `https://yantianfeng.com/api/emotion`,{page:++page,count:10}).then((data)=> {
            let str = data.emotions.map((item, index) => {
                return `<div> <img src="${item.url}"/> <div>${item.title}</div> </div>`
            }).join("")
            document.querySelector(".list").innerHTML = str
            document.querySelector("span").innerHTML = `${page}/4`
        })
       } if(page==4){
        next.disabled=true
       }
     
    }
</script>